One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,7)(4,9)(5,14)(6,10)(8,11)(12,15)(13,16)(18,22)(19,25)(20,28)(24,30)(26,27)(29,32) involution — undirected(1,3)(2,7)(4,13)(5,11)(6,12)(8,14)(9,16)(10,15)(17,18,20,22,21,24,28,30)(19,23,27,29,26,31,25,32)(1,3)(2,8)(4,11)(5,13)(6,12)(7,14)(9,15)(10,16)(17,19)(18,23)(20,27)(21,26)(22,29)(24,31)(25,28)(30,32) involution — undirected(1,4,6,5)(2,9,10,14)(3,11,12,13)(7,8,15,16)(19,26)(23,31)(25,27)(29,32)(2,10)(7,15)(8,16)(9,14)(17,20,21,28)(18,22,24,30)(19,27,26,25)(23,29,31,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.